Medieval math favorite Sir Cumference series is back! Lady Di of Ameter and Percilla Centwell figure out parts of a whole in this fun percent introduction.

Percilla Centwell and Lady Di are off to Gaggleston-on-Green to deliver Percilla's flock of one hundred geese to the townspeople who ordered them. When some of the geese go missing on the way, Percilla and Lady Di must figure out a way to make sure all of the customers still get their fair share of the flock. 

In this latest medieval math adventure, readers learn about finding percents as part of a whole by using fractions. The endnote includes step-by-step instructions for calculating percent.

Story Locale:fictional medieval kingdom

Series Overview: This well-known series features Sir Cumference, Lady Di of Ameter, and other members of the castle community in math adventures with engaging storylines that make learning and practicing math fun.
 
Contributor Bio(s)
 
Cindy Neuschwander is a retired elementary school teacher who was inspired to write the Sir Cumference series while visiting medieval castles in England. She now works part-time as a math remediation teacher and in the teacher-training program at California Polytechnic State University.

Author Residence: San Luis Obispo, CA

Author Hometown: San Diego, CA

Wayne Geehan is the illustrator of Multiplying Menace, Cut Down to Size at High Noon, and the Sir Cumference series. www.waynegeehan.com

Illustrator Residence:Acton, MA

Illustrator Hometown:Manchester, CT